Children of the Sea(海獣の子供Kaijū no Kodomo) is an ongoing Japanese seinen adventure manga series written and illustrated by Daisuke Igarashi, and serialized in Shogakukan's monthly seinen manga magazine Ikki. Shogakukan has released three tankōbon volumes so far, between July 30, 2007 and June 30, 2008. The manga is licensed in North America by Viz Media, who is serializing it online at Sigikki.com and who released the first tankōbon volume on July 21, 2009, and the second volume on December 15, 2009.